Conventional home security is mostly predicated on the saying, “Locks only keep honest people honest.” I mean, look at your average home today. Even a dead-bolted door can easily be opened with enough force. The sliding glass door is even worse, and whoever thought that windows were secure, anyway? Something that can be broken as easily as glass will truly only keep the honest people out, even if they are locked securely.
It is possible, though, to secure the windows of your home well enough that a break-in artist isn’t going to be able to get in. Burglar bars are pretty much fool-proof, unless the criminals are willing to attach a truck to them with a chain. Short of that, they’ll keep your home secure.
Burglar bars essentially look like jail bars over your windows, but they are secure. In Mexico they are actually rather common, especially on the more affluent homes. This idea has moved into the Southwest United States, where you can see a lot of homes with burglar bars on them. If you want your home secure, this is definitely the way to go.